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23311312201 = 151154379551
BaseRepresentation
bin10101101101011101…
…100110010101001001
32020011121100100122101
4111231131212111021
5340220143442301
614413054153401
71453450612222
oct255535462511
966147310571
1023311312201
11998269a981
124626ab2861
13227671ab78
1411b1da8249
15916805701
hex56d766549

23311312201 has 4 divisors (see below), whose sum is σ = 23465691904. Its totient is φ = 23156932500.

The previous prime is 23311312181. The next prime is 23311312207. The reversal of 23311312201 is 10221311332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23311312201 - 29 = 23311311689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23311312207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77189625 + ... + 77189926.

It is an arithmetic number, because the mean of its divisors is an integer number (5866422976).

Almost surely, 223311312201 is an apocalyptic number.

It is an amenable number.

23311312201 is a deficient number, since it is larger than the sum of its proper divisors (154379703).

23311312201 is a wasteful number, since it uses less digits than its factorization.

23311312201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154379702.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23311312201 its reverse (10221311332), we get a palindrome (33532623533).

It can be divided in two parts, 2331131 and 2201, that added together give a palindrome (2333332).

The spelling of 23311312201 in words is "twenty-three billion, three hundred eleven million, three hundred twelve thousand, two hundred one".

Divisors: 1 151 154379551 23311312201